Safe and vault door



June 11, 1929. R, A, CRAMER ET AL 1,716,426

SAFE AND VAULT DOOR Filed Dec. 26. 1925 Quorum nwmtozs:

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ROY A. CRAMER- AND JESSE F. CRAIVIER, OF KANSAS CITY, MISSOURI:

sAnE AN VAULT noon.

Application filed December as, 1925. Serial No. 77,697.

Our invention relates to improvementsv in doors for burglar proof vaults and safes and our object is to provide a door of this class which will prove highly resistant to the torch, drill, or explosives.

We accomplish this result by interlocking the interior plates with each other and with the outer shell of thedoor in such manner that they will hold together and prove highly resistant to an explosive even after the outer wall of the door has been cut away.

In order that the invention may be fully understood, referencewill now be had to the accompanying drawing, in which:

Fig. 1 is a plan view of the door, with the door frame or vestibule in cross section.

Fig. 2 is an enlarged fragmentary horizontal section of a portion of the door.

Fig. 3 is a detail of one of a plurality of bars provided with projecting elements constituting an important feature of the invention.

Referring now in detail to the various parts of the door, 2 designates the outer shell consisting of an outer wall 4 with an inwardly projecting flange 6 which constitutes the door j amb and extends around the entire margin of said outer wall 4. The flange 6 is provided with inwardly projecting tongues 8 which are spaced apart and preferably eX- I tend around the entire inner surface of said flange 6 for the purpose of entering the spaces between a series of tongues 10, projecting from the adjacent sidesand ends of bars 12 which latter are wedge-shaped in cross section.

The tongues 10 of the bars 12 are firmly held in the spaces between the tongues 8 to prevent forward or backward movement of said bars 12 by a series of plates 14, 26, 16, 18, 20, 22 and 24. -The outer shell 2 preferably consists of a steel casting, while the bars 12 and the intermediate plate 18 consist preferably of torch resisting metal. The plates 16 and 20 consist preferably of a number of plies of-drill resisting metal, such for instance as chrome steel, while the plates 22 and 24 consist preferably of suitable flame resisting material.

The wedge-shaped bars 12 are also reinforced with plates 26 and 28, such as chrome steel, so that they will prove highly resistant to drill or torch should a burglar attempt to gain access to any of the joints 29 between said bars 12 and the plates 18 and 2G for the insertion of an explosive to blow inor out all or any of the plates 14, 16, 18, 20, 22 and 24. It is also apparent that the entire outer wall 4 may becut out at the joints 29 between the bars 12 and the flange 6, or at the joints 81 between said bars '12 and the plates'14 without being able to remove any of the plates 14, 16, 18, 2O and'24, as they are firmly held in place by the wedgeshaped bars 12, which'in turn are reliably held in place by the coengaging tongues 8' and 10.

The plates 14, 16, 18, 20, 22 and 24 are firmly secured together in the usual manner with bolts and screws not shown as is likewise the wedge-shaped bars 12 and the plates 26 and 28. The plates 28 are also secured to the plates 18 and 22. The plates 26 fit in recesses in the bars 12 and coact with the plates 16 in overlapping the joints between said bars 12 and the adjacent edges of the plates 14 and 18.

The door is provided at its inner side with the usual bolts 30 adapted tobe thrown outwardly to engage the door frame or vestibule 32 for the purpose of holding the door in locked position;

The door may be made either in rectangular or circular form, and if made in the latter shape the wedge-shaped bars 12, instead of being straight as shown by Fig. 3, are made in segmental form.

.The different parts of the door can be readily assembled by first inserting the wedge-shaped bars 12 through the open rear portion of the shell 2 and then moving said bars 12 laterally until their tongues 10 enter the spaces between the tongues 8 of the flange 6. The bars 12 are reliably held in position against the flange 6 by inserting the bars 14, 26, 16, 1s, 28, 20, 22 and 24 in the order mentioned.

From the foregoing description taken in connection with the drawing, it is apparent that we have provided a door for vaults and safes which embodies the advantages above pointed out, and while we have shown and described the preferred construction, combination and arrangement of parts, we reserve the right to make such changes and modifications thereof as properly fall with in the spirit and scope of the invention as claimed.

Having thus described our invention, what we claim and desire tosecure by Letters Patent, is: v

TL safe door consisting a shell having an outer Wall, a continuous flange extending rearwardly from the margin of said shell, a plurality of continuous tongues spaced apart and projecting inwardly from said flange, bars arranged Within the shell and bearing against the inner surface of the outer Wall, a plurality of spaced tongues extending longitudinally of and projecting from said bars and adapted to fit Within the spaces be tween the first-mentioned: tongues and plates arranged Within the shell and. coacting With said tongues for-securingsaid bars in place.

2. A safe door consisting of an outer shell, a, flange extending rearwardly from saidshell, a plurality of spaced tongues'projecting inwardly from said flange, bars wedge-shaped in cross section and arranged, within the shell, a, plurality of tongues projecting from said bars and spaced apart to extend into the spaces between the firstmentioned tongues to secure said bars from forward or backward movement, plates highly resistant to drill. or torch overlapping the rear-portion of said bars, an intermediate plate bearing against the bars and the for- Ward' surface of the front one of the firstmentioned plates, and other plates highly resistant to drill or torch and one of which bears against the front surface of said intermediate plate while others fit into recesses in the Wedge-shaped bars.

In testimony whereof We affix our signatures.

ROY A. CRAMER. 1 JESSE F.. CRAMER. 

